Aluminium Casting Alloys

These are alloys of Aluminium, which are used in Casting. There have low densities and low melting temperatures. They show little solubility of Hydrogen, which can lead to Hydrogen Embrittlement.
These alloys generally have good fluidity, which makes them good materials to cast. The only problem is the shrinkage of the alloys upon cooling.

There are several types of Aluminium casting alloys, with the designation system (from the Aluminium Association) as follows:-